SB2019110203 - Denial of service in Qt
Published: November 2, 2019
Security Bulletin ID
SB2019110203
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-18281)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase. A remote attacker can create a specially crafted file, containing many directional characters, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.
Remediation
Install update from vendor's website.